Sports bottle with top-mounted filter

ABSTRACT

A personal bottle lid including a filter cup received in a filter holder, the cup and holder having apertures orbitable into alignment with one another for flow through the filter cup and orbitable out of alignment with one another to isolate the cup from the interior of the bottle.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The field of the invention relates to sports bottles and particularly tosports bottles incorporating filters for filtering tap water and thelike.

2. Brief Description of Related Art

With the active healthy way of life subscribed to by many in society, agreat demand exists for personal sports bottles for carrying a quantityof refreshing or energizing liquid for quick hydration during sportingactivities such as running, bicycling, hiking, tennis, golf and thelike. Typically, sports bottles are constructed of plastic, a materialoften not biodegradable and, with the relatively high consumption attoday's rates, the landfills are fast filling with single use bottles.

It has long been recognized that the cost and inconvenience of accessingfiltered water is a problem which can discourage consumption ofsufficient quantities of fluids to adequately hydrate the athlete.Accordingly, there has long existed a need for a compact and convenientfiltration device which would allow for use of readily available tapwater to be conveniently and inexpensively introduced and filteredallowing for numerous repeated fills and a long service life.

Numerous different efforts have been made to provide different types offiltration systems for filtering drinking water and the like. Early on,a canteen was proposed which was separated into multiple chambers andincluding a filtering body interposed between the chambers so that anair pump could force unfiltered water through the filtering body. Adevice of this type is shown in U.S. Pat. No. 7,036,542 to Hall.

Another device proposed for use in conjunction with a canteen involvedan internal chamber filled with a particulate material for purifying thewater and incorporating concentric tubes to force the fluid to flowthrough a circuitous path, and also including a manually operated pumpfor pressurizing the container to pump the water from the canteenthrough the purifying assembly. A device of this type is shown in U.S.Pat. No. 4,714,550 to Malson.

Another example of a prior water purification system is disclosed as acontainer with a removable lid positioned within a wide mouth tubularstructure and including a filter cartridge positioned centrally todivide the container into two compartments for unfiltered water andfiltered water. The filtering material includes a macro fabric filter, acore of silver-impregnated granular activated carbon, and a bottomsegment of macro fabric filter to remove contaminants and sediments fromthe water percolated through the disposable filter cartridge to therebyimprove the taste of the water and remove odors before being drawn froma spigot at the bottom of the container. A device of this type is shownin U.S. Pat. No. 4,800,018 to Moser.

Another proposed solution involves a container receiving an elongatedfilter device formed with an inner wall to divide the area inside thecylinder into upper and lower chambers and including a sipping tube foraccess to a lower chamber for filtered water. A device of this type isshown in U.S. Pat. No. 5,122,272 to Iana.

Other constructions incorporating upper and lower chambers separated bya filter includes the proposal of a ceramic filter through which wateris dripped under gravitational forces to a lower receptacle. A device ofthis type is shown in U.S. Pat. No. 5,186,830 to Rait.

It has also been proposed to incorporate filtering devices in the neckof a water bottle to filter pesticides, chlorine, particulate matter,algae, bacteria and heavy metals from the water to improve the taste andremove odors. A device of this type is shown in U.S. Pat. No. 5,431,813to Daniels.

Another proposed solution involves a container including a porous filtercartridge sealed in an outlet port and incorporating multiple fibrousspacers and treatment chambers containing beds of treatment media tofilter the water for storage in the container as dispensed via outletports in the periphery of the purifier cartridge. A device of this typeis shown in U.S. Pat. No. 5,562,824 to Magnusson.

Another plastic bottle device includes a neck for receiving a tube offiltering material for filtering water introduced through the neck. Adevice of this type is shown in U.S. Pat. No. 5,609,759 to Nohren, Jr.

Numerous different types of squeeze bottles have been proposed for usewith various types of filters for creating partial vacuums within thechambers to draw water through filters or to pressurize to expel waterfrom the bottle. One such type is shown in U.S. Pat. No. 5,733,448 toKura.

Another squeeze bottle approach includes a squeeze bottle incorporatinga cap having an upstanding inlet compartment thereon for receiving andcontaining unfiltered water to be passed downwardly through a tubularfiltration device to be expelled into the squeeze bottle upon generatinga partial vacuum and then further including a purification filter forfiltering water as it is passed to an outlet. A device of this type isshown in U.S. Pat. No. 7,585,409 to Bommi.

Other bottles have been proposed which include an enlarged wide-mouthneck for receiving a filter through which unfiltered water can be pouredand through which is passed a relatively rigid straw for drawingfiltered water from the bottom of the bottle. A device of this type isshown in U.S. Pat. No. 5,497,920 to Moeller.

It has also been proposed to provide a water pitcher including an innerchamber for containing unfiltered water to be flowed through a bottomoutlet plugged by a filter to provide filtered water to be drawn outthrough a spout. A device of this type is shown in U.S. Pat. No.7,670,479 to Arett.

It has also been proposed to provide a bottle with an inverted bottomwith the bottom thereof being open for receipt of a filter deviceincluding a screen and filter through which water might be passed to beretained in the bottle for subsequent consumption from the neck of thebottle itself. A device of this type is shown in U.S. Patent PublicationNo. 2010/0170839 published Jul. 8, 2010 to Kohl.

Other proposals have suggested a bottle formed intermediately with awall for suspending a filter and having an inlet stub in the shoulder ofits upper portion for receiving unfiltered water to pass through thefilter and to subsequently be dispensed therefrom when the bottle isinverted for the filtered water to flow through an annulus in the wallof the bottle to be dispensed through the neck of the bottle. A deviceof this type is shown in U.S. Pat. No. 6,733,669 to Crick.

A multi-stage water purification device has been proposed including alower compartment having a flexible wall which may be compressed andthen released to draw a partial vacuum to thus draw unfiltered waterdownwardly from an overhead compartment through a multi-stage filter tobe partially filtered and stored in the lower compartment so that uponsubsequent compression of the flexible wall the partially filtered waterwill be driven upwardly through a one-way valve to pass through a secondstage filter to a filtered water compartment ready to be dischargedthrough a pull up valve. A device of this type is shown in U.S. Pat. No.7,585,409 to Bommi et al. Such devices are relatively complicated,expensive to manufacture and rely on atmospheric pressure to control therate of fluid flow through the first stage filter.

The invention may be embodied in other forms without departure from thespirit and essential characteristics thereof. The embodiments describedtherefore are to be considered in all respects as illustrative and notrestrictive. Although the present invention has been described in termsof certain preferred embodiments, other embodiments that are apparent tothose of ordinary skill in the art are also within the scope of theinvention. Accordingly, the scope of the invention is intended to bedefined only by reference to the appended claims.

SUMMARY OF THE INVENTION

The present invention includes a lid for a personal water bottle. Thelid includes a filter holder receiving a filter cup, the holder and cuphaving flow apertures alignable with one another for flow of fluidtherethrough and shiftable out of alignment to isolate the filter cupfrom the interior of the bottle.

The features and advantages of the invention will be more readilyunderstood from the following detailed description which should be readin conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a personal water bottle incorporatingthe present invention;

FIG. 2 is a partial perspective view of the bottle shown in FIG. 1 butexploded;

FIG. 3 is a vertical sectional view of the bottle shown in FIG. 1, inenlarged scale;

FIG. 4 is a vertical sectional view similar to FIG. 3 but depicting thecap removed from the filter and pour spout;

FIG. 5 is a transverse sectional view taken along the line 5-5 of FIG.3;

FIG. 6 is a transverse sectional view taken along the line 6-6 of FIG.3;

FIG. 7 is a transverse sectional view taken along the line 7-7 of FIG.3;

FIG. 8 is a transverse sectional view similar to FIG. 7 but with thevalve rotated;

FIG. 9 is vertical sectional view taken along the line 9-9 of FIG. 7;

FIG. 10 is a perspective view of a second embodiment of the personalsports bottle of the present invention;

FIG. 11 is a perspective view similar to FIG. 10 but exploded;

FIG. 12 is a transverse view taken along the line 12-12 of FIG. 11;

FIG. 13 is a transverse view taken along the line 13-13 of FIG. 11;

FIG. 14 is a transverse view, in enlarged scale, taken along the line14-14 of FIG. 11;

FIG. 15 is a vertical sectional view taken along the line 15-15 of FIG.14;

FIG. 16 is transverse sectional view similar to FIG. 14 but showing thevalve closed;

FIG. 17 is a vertical sectional view taken along the line 17-17 of FIG.16;

FIG. 18 is a vertical sectional view, in enlarged scale, of the filterholder included in the personal sports bottle shown in FIG. 10; and

FIG. 19 is a detailed sectional view, in enlarged scale, taken from thecircle designated 19 in FIG. 18.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention includes, generally, a lid assembly 25 to bemounted on a bottle 21 and including a depending open top cylindricalfilter holder 29 which receives a cylindrical filter cup 33 intelescopical relation containing a filter 35. A drinking spout is formedin the lid 25 spaced laterally of the holder 29. The holder and cup areformed in their respective bottom walls with respective apertures 31 and71 (FIG. 4) to be selectively aligned for flow of filtered watertherethrough as indicated by the directional arrows 32. The holder maybe formed integrally with a cover plate assembly, generally designated51, and may project above the top of a circular cover plate 53 to form aconnector ring 68 (FIG. 2). The ring 68 is formed in its interior wallwith diametrically opposed bayonet thread grooves 67 configured withupwardly opening access slats 69 disposed adjacent clockwise facing stopsurfaces 67. The top edge of the cup 33 is likewise formed with pairs ofdiametrically opposed, upwardly opening control notches 61 configured toselectively register radially with pairs of the slats 69. The lidassembly 25 includes a cylindrical rim, generally designated 75,configured with a cylindrical collar having the interior female threads51 and formed on its vertical exterior with horizontal gripping ribs 77spaced thereabout. The collar 75 is configured with an annular flange 79overlying the periphery of annular flange 54 of a mounting assemblygenerally designated 51 to connect the plate assembly nested to the topedge of the neck 23. The collar may be split and may incorporate threadscompatible with a NALGENE® bottle.

In the preferred embodiment, the lid assembly 21 includes a circularcontrol plate 81 (FIGS. 2 and 3) formed on its diametrical oppositesides with radially outwardly projecting lugs 83 for selective receiptin the notches 61 and in the upwardly opening slats 69 of bayonetthreads 67 formed in the upper ring 68.

It will be appreciated that, in practice, the cup 33 is so constructedthat the diametrical notches 61 are positioned relative to therespective apertures 71 in the bottom wall so that when the controlplate 81 is rotated counterclockwise to a closed position with apertures71 out of registration with the holder apertures 31 (FIG. 3) of thehousing 29 the bottom walls of the cup and holder to act as a valve toblock liquid flow upwardly from the body of the bottle 21 and into thefilter 35 to thereby maintain the filter isolated from the filteredwater.

The notches 61 in the cup 33 are further clocked relative to theapertures 71 (FIG. 4) in the bottom wall of such cup so that when thelugs 83 are registered with the bayonet thread 67 and rotated clockwiseto contact the stop 70 at the end of the thread (FIG. 9), the apertures71 will be registered with the aperture 31 of the holder and the bottomwall of the filter housing so that water can flow downwardly through thefilter 35 and into the container formed by the bottle 21.

The control plate 81 is formed on its top side with a pair ofspaced-apart upstanding ears 85 (FIG. 3) which receive an end of aconnector tether 87 of a spout cap 91. The tether is in the form of aplastic belt having sufficient body to provide for hinging of the tetherabout the hinge pin 86 at the lower end thereof to an upstandingorientation, so a user can grasp the cap 91 and rotate this cap to applysupport torque to the control plate 81 to rotate such plate between itsopen and closed positions.

Referring to FIG. 3, the spout cap 91 is configured with a downwardlyprojecting stub tube 93 formed to be complementarily received within thepour spout 37 as viewed in FIG. 3. In the preferred embodiment, thespout 37 is kidney bean shaped in horizontal cross section to thusprovide a pair of lobes 38 at the opposite ends projecting toward theholder to form a saddle therebetween. The cap 91 and stub tube 93 arelikewise formed with a kidney bean complimentary shape to facilitateconvenient shaping onto the spout and release therefrom.

Received in an annulus formed about the stub tube 93 is an annular fiberseal 97 which seals against the top edge of the pour spout 37 as shownin FIG. 3.

As will be appreciated by those skilled in the art, the filter 35 may beconstructed of granulated carbon to remove unpleasant odors, organicsand certain heavy metals. The filter may be a monolithic cylindricalcarbon block designed such that the porosity of the block is as low as 1micron to trap biological contaminants and the like.

In practice, it will be appreciated that the lid assembly 75 may bemounted on a selected bottle such as the bottle 21 as by placing theplate assembly 51 on the top edge of the neck 23 as shown in FIG. 3. Thefilter 35 may be placed in the filter cup 33 and the cup loweredtelescopically into the open top of filter housing 29. The user may thengrasp the cap 91 and tab 41 and position the cap assembly 41 (FIG. 3)with the control plate 81 over the filter 35 to engage the lugs 83 witha pair of diametrically disposed notches 61 of the cup 33 to provide formechanical interconnection thereof. The user may conveniently rotate thecap assembly 41 forty-five degrees clockwise (FIG. 3) relative to thefilter housing 29 until the lugs 83 engage the respective stops 70 thusindicating the outlet apertures are out of registration with the housingapertures 31 to thus positively block any flow to the bottom side of thefilter 35. The cap 91 and tether 87 may then rotated about the pivot pin86 to lower the spout cap 91 onto the spout to insert the stub tube insealing engagement as shown in FIG. 3, thus sealing the spout andconcurrently locking the cap 61 clocked in position with the apertures31 and 71 closed.

It will be appreciated that when the user would like to fill the bottle21 with filtered water, he or she may access a spigot of tap water orthe like and snap the spout cap 91 off the spout 37 to free the plate 81for rotation relative to the filter housing 29. The spout cap 91 maythen serve as a convenient handle to be grasped by the operator torotate the plate 81 counterclockwise thus orbiting the lugs 83 along therespective bayonet notches 67 until they engage the respective stops 67to free such lugs to be passed vertically upwardly through therespective openings 69 (FIG. 2) to disengage the plate 81 from thehousing 29 to be moved clear of the top of the filter. In this position,the cup apertures 71 are aligned with the apertures 31.

The user may then access a municipal water spigot 90 (FIG. 4) and pourwater 43 into the top of the filter 35 to flow water downwardly by forceof gravity to pass downwardly through the filter and through the alignedpie-shaped apertures 31 and 71 to flow into the body of the bottle 21.

When the bottle has been filled to the desired capacity, the user maythen turn off the water from the spigot 90 and close the cap assemblyitself. The cap assembly 41 may be closed by again inserting the controlplate 81 into the top of the filter housing 29 and engaging the lugs 83with diametrically opposed notches 61 and rotating the cup 33 until thelugs 83 register axially over the openings 69 in the bayonet threads 67so such lugs can be passed downwardly into the bayonet threads and allowthe plate 81 to be rotated 45° clockwise as viewed in FIG. 2 to therebymove the plate axially downwardly to align horizontally with the body ofthe threads 67 so the plate can be rotated to orbit the lugs 83 to therespective end stops 70 (FIG. 9) of the respective threads 67, therebyrotating the cup 33 sufficiently to rotate the aperture 71 out ofalignment with the apertures 31 in the bottom of the filter housing tothereby block fluid flow upwardly into the filter 35. At the point thehinge pin is oriented parallel to the main horizontal axis of the spout37 to orient the tether 87 so that, when the cap 91 is lowered it willbe aligned for snap fit the stub tube 93 into the spout.

The user may then undertake his or her active day, such as a bicycleride, mountain hike or to perform in the workplace having the portablepersonal bottle of the present invention ready for convenient access.When the user desires to access the bottle, he or she may merely snapthe spout cap 91 off the spout 37 (FIG. 3) to rotate the tether aboutthe hinge pin 86 to open the spout 37 for access to the filtered waterwithin the bottle 21. The cap 91 will then be held away from the top endof the spout by the user holding the tether and/or by the saddle betweenthe hinge pin 86 of the kidney bean shaped cap. This procedure ofopening the cap and accessing the water then may be repeated until thefiltered water is substantially or completely consumed, at which timethe water may be replenished from the spigot 90 or the like. It will beappreciated from the foregoing that the lid-mounted filter assembly andpour spout of the present invention provides an economical andconvenient means for filtering water into a personal bottle andisolating the filtered water for drinking.

Referring to FIGS. 10 and 11, a second embodiment of the personalfiltered water bottle of the present invention includes, generally, abottle 101 having a neck configured with coarse male threads 103 forreceipt of a lid 105. The lid 105 is formed with an upstanding stub tubeholder 107 configured for telescopic receipt of the lower end of afilter cup 109. The filter cup 109 is formed in its lower extremity withan exterior O-ring gland which receives an O-ring 113 to form a dynamicseal with the interior wall of the tube holder 107. The filter cup isconfigured to receive a filter cartridge generally designated 121, andis formed in its exterior walls with a pair of vertical ribs 123annularly spaced apart to selectively snap into a vertical groove in theinterior of the holder to register the cup in its open or closedpositions. A filter holder cap 127 is connected to the cup 109 by aflexible tab 131.

The upper edge of the cylindrical cup 109 is formed with a radiallyoutwardly projecting flange 124 (FIGS. 18 and 19) constructed to besnap-fitted into a groove 126 formed in the peripheral flange 128 of thecap 127.

Referring to FIG. 12, the portion of the lid 105 forming the bottom wallof the holder 107 is formed with a plurality of truncated, triangularapertures 141 spaced equidistant around a circular pattern, its centercoinciding with the axial center of the cup 109. With continuedreference to FIG. 12, it is noted that indicia “filter” 145 and “drink”147, respectively are displayed on the lid adjacent the exterior of theholder 107, spaced circumferentially apart to designate when the holderis in position for filtering water through the filter 121 or in positionfor drinking of the filtered water.

Referring to FIG. 13, the bottom wall of the cup 109 is formed withapertures 151 complementing the shape of the apertures 141 and alsodisposed on the circumference of a circle having its center coincidingwith the axial center of the holder itself and have the same diameter asthe pattern for that for the apertures 141. Thus, when the holder isreceived in the holder 107 and rotated to the “filter” position, theapertures 141 and 151 will be aligned with one another as shown in FIG.15 for flow of filtered water therethrough. When the cup 109 is rotatedto the “drink” position, such apertures will be rotated out ofregistration with one another as shown in FIG. 16 to block water frompenetrating upwardly into the filter.

With continued reference to FIGS. 11 and 12, the lid is formed with anupstanding drinking spout 171 spaced from the cup 109 to be utilized fordrinking of filtered water from the bottle 101.

A cap 172 is provided for covering the spout 170 and includes a flexibletether 174 connected with a collar 176 which may be fitted over thespout 171.

Similar to the description for the embodiment of FIG. 1, it will beappreciated that the filter cartridge 121 may be inserted in the cup 109and the holder received in the holder 107. When it is desirable tofilter water into the bottle FIG. 10, the user may merely snap the cap127 off the holder as shown in FIG. 11 and hold the holder under thespigot 90 to flow water downwardly through the filter 121 and throughthe aligned apertures 141 and 151 as shown in FIG. 14 to fill the bottlewith filtered water.

When filled, the user may then conveniently rotate the holder to orbitthe pointer 128 to the drink indicia 147 (FIGS. 12-14) to therebyposition the apertures 141 and 151 out of alignment with one another asshown in FIG. 16 so that the filtered water does not reenter the filterholder and pick up any impurities that may exist in the filter itself.

When the user desires to consume some water, he or she may then lift thedrinking spout cap 120 off the drinking spout 171 and drink from thespout directly or otherwise pour water into a glass or other container.

As will be appreciated by those skilled in the are the personal fluidbottle of the present invention provides an inexpensive and convenientlid device allowing for filtering water into a bottle to be isolatedfrom the filter until such time as the water is consumed and ready forreplenishment.

The invention may be embodied in other forms without departure from thespirit and essential characteristics thereof. The embodiments describedtherefore are to be considered in all respects as illustrative and notrestrictive. Although the present invention has been described in termsof certain preferred embodiments, other embodiments that are apparent tothose of ordinary skill in the art are also within the scope of theinvention. Accordingly, the scope of the invention is intended to bedefined only by reference to the appended claims.

1. A personal filtering liquid bottle apparatus comprising: a bottle; alid on the bottle, the cover formed on one side with a pour spout andformed with an inlet spaced laterally therefrom; the lid further formedwith an open top filter housing over the inlet; a filter cup nestedrotatably in the housing and configured with a bottom wall for normallyblocking flow from the inlet having an outlet, the housing beingrotatable in the housing between an open position with the outletregistered with the inlet and further rotatable to a closed positionwith bottom wall blocking the outlet; and a filter in the housing. 2.The personal filtering liquid bottle apparatus of claim 1 that includes:a releasable fastener for releasable fastening the cup in the housing.3. The personal filtering liquid bottle of claim 1 wherein: the coverincludes a plurality of inlets; and the bottom wall is formed with aplurality of outlets registrable with the respective inlets.
 4. Thepersonal filtering liquid bottle of claim 1 wherein: the cup isconstructed to be selectively removed from the housing.
 5. The personalfiltering liquid bottle of claim 1 wherein: the housing is formed in itsinterior with an index indent; and the cup is formed in its exteriorwith first and second radially spaced apart rib elements constructed toselectively register with the indent when the housing is in respectiveopen and closed positions.
 6. The personal filtering liquid bottle ofclaim 1 wherein: the cup is constructed to project above the top edge ofthe housing.
 7. The personal filtering liquid bottle of claim 1 wherein:the housing includes a cap for covering the top thereof and a flexibletab connecting the cap to the housing.
 8. The personal filtering liquidbottle apparatus of claim 1 wherein: the filter housing is formed in itsupper portion with interior threads; the cup is formed with a pair ofoppositely disposed upwardly opening notches and the apparatus includes;a plate for covering a cup, the plate including oppositely projectinglugs for engaging the respective notches and to project laterallyoutwardly from the notches to engage the threads and constructed to,upon rotation of the cover, rotate the cup and to engage the threads andbe drawn into closing relationship with the cup.
 9. The personalfiltering liquid bottle apparatus of claim 8 wherein the apparatusincludes: a spout cap for selectively covering the spout; and a tetherconnecting the spout cap to the lid and constructed and so arranged asto, when the cup is rotated to move the outlet and inlet out ofregistration with one another, position the spout cap for closure on thespout.
 10. A personal fluid, self filtering fluid bottle lid device forfitting to the neck of a bottle having an upwardly facing opening andcomprising: a lid formed with a peripheral skirt for fitting to the neckand configured on one side with a pour spout and further formed with ahousing defining a well spaced laterally from the spout, the wellincluding a bottom wall formed with at least one inlet; a filter cupnested rotatably in the well, rotatable between open and closedpositions and configured with a filter bottom wall including an inletconfigured to be, when the housing is in the open position, registeredwith the outlet.
 11. The personal, self filtering fluid bottle cover ofclaim 10 wherein: the cup is formed at its upper end with a latchelement and the device includes; a cap fitted rotatably on the well andincluding a catch element engageable with the latch element for rotationof the well with rotation of the filter cap.
 12. The personal, selffiltering fluid bottle cover of claim 11 that includes: a spout capconnectable with the spout and including a flexible tab is connected tothe filter cap.
 13. The personal, self filtering fluid bottle cover ofclaim 11 wherein: the filter plate is formed with at least one upwardlyopening notch defining the latch element; and the filter lid is formedwith a dog engageable with the latch element.
 14. The personal, selffiltering fluid bottle cover of claim 10 that includes: a filterreceived in the housing.
 15. The personal, self filtering fluid bottlecover of claim 10 that includes: a latch for releasably holding the cupin the well.
 16. The personal, self filtering fluid bottle cover ofclaim 11 that includes: index means for indexing the rotational positionof the cap relative to the well.
 17. The personal, self filtering fluidbottle cover of claim 10 that includes: registration means forregistering the position of the housing when in its closed position. 18.The personal, self filtering fluid bottle cover of claim 10 wherein: thewell bottom wall is formed with a predetermined number of outlets; andthe cup bottom wall is formed with a plurality of inlets correspondingwith the predetermined number of outlets.
 19. A personal fluid bottledevice comprising: a bottle including a top wall; the top wall includingat lease one filter inlet; a filter holder disposed over filter inlet; afilter in the filter holder; a valve interposed between the filter andfilter inlet and operable to be manually shifted between an open andclosed position; and a pour spout on the top wall spaced from the fillerport.
 20. The personal fluid bottle device of claim 19 wherein: thevalve includes a filter cup interposed between the holder and filter andformed with an outlet cooperating with the inlet to form the valve.